640905912

素因数分解:

$2^3\times 3^3\times {\mathrm{47}}^1\times {\mathrm{63131}}^1$

素因数の和:63193

約数の個数: 64

約数和(自身を含む): 1818201600

約数和(自身を除く): 1177295688

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 47, 54, 72, 94, 108, 141, 188, 216, 282, 376, 423, 564, 846, 1128, 1269, 1692, 2538, 3384, 5076, 10152, 63131, 126262, 189393, 252524, 378786, 505048, 568179, 757572, 1136358, 1515144, 1704537, 2272716, 2967157, 3409074, 4545432, 5934314, 6818148, 8901471, 11868628, 13636296, 17802942, 23737256, 26704413, 35605884, 53408826, 71211768, 80113239, 106817652, 160226478, 213635304, 320452956, 640905912]

約数ペア:

[(1, 640905912), (2, 320452956), (3, 213635304), (4, 160226478), (6, 106817652), (8, 80113239), (9, 71211768), (12, 53408826), (18, 35605884), (24, 26704413), (27, 23737256), (36, 17802942), (47, 13636296), (54, 11868628), (72, 8901471), (94, 6818148), (108, 5934314), (141, 4545432), (188, 3409074), (216, 2967157), (282, 2272716), (376, 1704537), (423, 1515144), (564, 1136358), (846, 757572), (1128, 568179), (1269, 505048), (1692, 378786), (2538, 252524), (3384, 189393), (5076, 126262), (10152, 63131)]